Signo de la golondrina en la Enfermedad de Parkinson

Axial SWI Clinical high resolution 3D-T2*/SWI MRI (Philips ‘PRESTO’ sequence) of a Parkinson's disease patient showing absence of the normal high SWI signal within the nigrosome-1 bilaterally (absent swallow tail sign). Image and text used under creative commons licence CC BY 3.0. Original source: Schwarz ST, Afzal M, Morgan PS et-al. The 'swallow tail' appearance of the healthy nigrosome - a new accurate test of Parkinson's disease: a case-control and retrospective cross-sectional MRI study at 3T. PLoS ONE. 2014;9 (4): e93814. doi:10.1371/journal.pone.0093814 Clinical high resolution 3D-T2*/SWI MRI (Philips ‘PRESTO’ sequence) of a Parkinson's disease patient showing absence of the normal high SWI signal within the nigrosome-1 bilaterally (absent swallow tail sign). Image and text used under creative commons licence. Original source: Schwarz ST, Afzal M, Morgan PS et-al. The 'swallow tail' appearance of the healthy nigrosome - a new accurate test of Parkinson's disease: a case-control and retrospective cross-sectional MRI study at 3T. PLoS ONE. 2014;9 (4): e93814. doi:10.1371/journal.pone.0093814
Texto completo

Abducens nerve on MRI

Annotated MRI (FIESTA)
Modality: MRI




MRI Axial T2 FIESTA
Annotated high resolution FIESTA sequence through the medulla and pons demonstrates the normal course of the abducens nerve (CN VI) (white arrow) as it ascends from the ponto-medullary junction to Dorello's canal.